Perhaps you should try some spelling variations:
thanh trung » thanh tung
nam thong » nam thang, nam phong, nam phuong
nam trong » nam trung, cay trong
doc hieu » toc thieu, hoc thieu
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (doc hieu)) xanh - thanh trung ((nam thong) OR (nam trong)) cong dan phan dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hien) or (doc hieu)) xanh - thanh trung ((nam thong) OR (nam trong)) cong dan phan dau~".
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (doc hieu)) xanh - thanh trung ((nam thong) OR (nam trong)) cong dan phan dau*.